Holiday imperial 2001, Owner'S Manual, Page: 110 / 301

The Hydro-Hot heat system is specially designed for use in motorhomes. The
Hydro-Hot is an appliance combining a water heater with a furnace. The Hydro-
Hot will provide an almost endless supply of hot water and heat the interior of
the motorhome. A 50,000 BTU diesel fired burner and a 1,650 watt AC element
heats a 50/50 antifreeze solution to approximately 200º F. The antifreeze solution
is pumped through heat exchangers located throughout the motorhome. Four
pumps are used to circulate the antifreeze solution. Three pumps supply the solu-
tion to the interior heat exchangers. The fourth pump circulates the antifreeze
solution through the engine. Fresh water is heated when pumped through a coil
tube inside the aqua hot.
Chlorine bleach or other concentrated chlorine bearing chemicals can cause
failure to the Hydro-Hot’s Domestic Water Loop (copper tubing) if not properly
and thoroughly rinsed. The Hydro-Hot’s copper tubing is rated for use with fresh
water and winterization solutions only. Periodic flushing with common house-
hold chemicals, including bleach, has little or no effect on the heating system if
properly rinsed with the fresh water afterwards. Failure of copper tubing, espe-
cially soft or flexible copper, can result if materials other than water or winteri-
zation solutions are allowed to reside inside the piping for extended periods as
during storage or other periods of non-use. The most common cause for failure is
due to an extended exposure to chlorine, solutions containing chlorine (i.e.
bleach) or hydrochloric acid.
NOTE: The Hydro-Hot must be turned ON before using any heat
feature.
Appliances
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I M P E R I A L
4 • 1 1 0
HYDRO - HOT
(Optional)